 /*******************************************************************************
  * Copyright (c) 2006 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.core.internal.resources.mapping;

 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.resources.mapping.*;
 import org.eclipse.core.runtime.IProgressMonitor;

 /**
  * A resource mapping for a shallow container.
  */
 public class ShallowResourceMapping extends ResourceMapping {

     private final ShallowContainer container;

     public ShallowResourceMapping(ShallowContainer container) {
         this.container = container;
     }

     public Object getModelObject() {
         return container;
     }

     public String getModelProviderId() {
         return ModelProvider.RESOURCE_MODEL_PROVIDER_ID;
     }

     public IProject[] getProjects() {
         return new IProject[] { container.getResource().getProject() };
     }

     public ResourceTraversal[] getTraversals(ResourceMappingContext context, IProgressMonitor monitor) {
         return new ResourceTraversal[] { new ResourceTraversal(new IResource[] { container.getResource() }, IResource.DEPTH_ONE, IResource.NONE)};
     }
     
     public boolean contains(ResourceMapping mapping) {
         if (mapping.getModelProviderId().equals(this.getModelProviderId())) {
             Object object = mapping.getModelObject();
             IResource resource = container.getResource();
             // A shallow mapping only contains direct file children or equal shallow containers
 if (object instanceof ShallowContainer) {
                 ShallowContainer sc = (ShallowContainer) object;
                 return sc.getResource().equals(resource);
             }
             if (object instanceof IResource) {
                 IResource other = (IResource) object;
                 return other.getType() == IResource.FILE
                     && resource.getFullPath().equals(other.getFullPath().removeLastSegments(1));
             }
         }
         return false;
     }

 }

